Company lists · Data refreshed September 2026

Top 25 Law firm tax services based in London, United Kingdom

Name: Law firm tax services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 476 companies tracked

RevenueBase identified 476 law firm tax services headquartered in London, United Kingdom as of September 2026 and tracks 31,929 professional contacts across them, including 11,046 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers law firm tax services headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

476Companies

31,929Contacts tracked

11,046Verified emails

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The 25 largest law firm tax services based in London, United Kingdom

Ranked by team size

Top 25 of 476 law firm tax services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to law firm tax services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	BDO UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	6,933 contacts →
	Partial evidence “BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Source: RevenueBase Database · checked Sep 28, 2026
2	LAW Firm	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	6,284 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
3	Slaughter And MAY	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,951 contacts →
	Partial evidence “Slaughter and May is regarded as one of the most prestigious law firms in the world.” Source: RevenueBase Database · checked Sep 28, 2026
4	S&w	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,930 contacts →
	Indirect evidence “As a fast growing UK accounting and advisory firm, we’ve been there, as a trusted partner, helping businesses and individuals meet challenges and seize opportunities across…” Source: RevenueBase Database · checked Sep 28, 2026
5	Moore Kingston Smith	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	1,151 contacts →
	Indirect evidence “At Moore Kingston Smith, we believe in the potential of people to make a positive impact, fuelled by the power of genuine understanding.” Source: RevenueBase Database · checked Sep 28, 2026
6	Farrer & CO	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	693 contacts →
	Indirect evidence “Farrer & Co is synonymous with the highest quality legal advice and service.” Source: RevenueBase Database · checked Sep 28, 2026
7	Buzzacott	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	575 contacts →
	Indirect evidence “Buzzacott is an accountancy and advisory firm with a long-standing history of supporting individuals, businesses, and not-for-profits.” Source: RevenueBase Database · checked Sep 28, 2026
8	Gravita	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	379 contacts →
	Indirect evidence “Welcome to the new era of accountancy.” Source: RevenueBase Database · checked Sep 28, 2026
9	Gerald Edelman	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	256 contacts →
	Indirect evidence “At Gerald Edelman, we help business leaders succeed.” Source: RevenueBase Database · checked Sep 28, 2026
10	Lubbock Fine	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	203 contacts →
	Partial evidence “Lubbock Fine is an independent accounting, tax, audit and advisory firm in the City of London.” Source: RevenueBase Database · checked Sep 28, 2026
11	Sopher CO	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	185 contacts →
	Partial evidence “Sopher + Co is one of the most entrepreneurial and progressive firms of accountants, business advisers, tax and corporate finance consultants in London.” Source: RevenueBase Database · checked Sep 28, 2026
12	EY Private Client Services	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	177 contacts →
	Partial evidence “Thoughtfully structuring and managing your tax affairs is more important than ever.” Source: RevenueBase Database · checked Sep 28, 2026
13	Oury Clark	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	171 contacts →
	Indirect evidence “Our pioneering integrated approach to professional services cuts through the complicated layers of the legal and accountancy world to give you straightforward joined-up advice and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Collyer Bristow	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	162 contacts →
	Partial evidence “Collyer Bristow is a long-established London law firm with a distinguished heritage dating back to 1760.” Source: RevenueBase Database · checked Sep 28, 2026
15	Acuity Professional Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	138 contacts →
	Indirect evidence “We are a financial Professional Services firm, committed to giving you a simple and straightforward experience and ensuring you get the sophisticated financial outcomes you want.” Source: RevenueBase Database · checked Sep 28, 2026
16	Accounts And Legal	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	133 contacts →
	Indirect evidence “Traditional accountants do a great job of the numbers, but that's often as far as the service goes.” Source: RevenueBase Database · checked Sep 28, 2026
17	Alliotts LLP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	114 contacts →
	Indirect evidence “Alliotts LLP is based in London and Guildford.” Source: RevenueBase Database · checked Sep 28, 2026
18	Xeinadin Previously Silver Levene	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	102 contacts →
	Partial evidence “With more than 2,500 people spanning our office network, we provide an extensive spectrum of personalised services, encompassing accounting, audit, tax, advisory, and business…” Source: RevenueBase Database · checked Sep 28, 2026
19	AOG	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	101 contacts →
	Partial evidence “Welcome to AOG, your esteemed accounting and tax partner, serving SMEs and high-net-worth individuals in the UK and abroad.” Source: RevenueBase Database · checked Sep 28, 2026
20	Hunters LAW LLP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	97 contacts →
	Indirect evidence “Legal issues can be complex and stressful – even those which might initially seem straightforward.” Source: RevenueBase Database · checked Sep 28, 2026
21	Jury O'shea LLP	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	95 contacts →
	Partial evidence “We are a City law firm dedicated to delivering practical, strategic and structured legal solutions in real estate, dispute resolution, private client and employment law matters.” Source: RevenueBase Database · checked Sep 28, 2026
22	Druces LLP	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	85 contacts →
	Partial evidence “Founded in 1767, City of London law firm Druces has 250+ years’ experience of advising public and privately-owned businesses and wealthy individuals across a range of industry…” Source: RevenueBase Database · checked Sep 28, 2026
23	The FRY Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	85 contacts →
	Partial evidence “We are a team of helpful tax and financial planning experts, here to listen, understand your needs and circumstances and make all aspects of dealing with your finances simple…” Source: RevenueBase Database · checked Sep 28, 2026
24	Kidd Rapinet LLP	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Kidd Rapinet Solicitors have 6 offices in Berkshire, Buckinghamshire, Surrey and Canary Wharf.” Source: RevenueBase Database · checked Sep 28, 2026
25	Beavis Morgan	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “Beavis Morgan is part of the Kinbrook Group, a people-first accounting, wealth management, legal and professional advisory services group.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: law firm tax services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names law firm tax services.
Partial evidence: Its own public description names part of law firm tax services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name law firm tax services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 476 law firm tax services based in London, United Kingdom

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Law firm tax services based in London, United Kingdom at a glance

As of Sep 28, 2026

34.6%Verified-email coverage

67.1Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

262

11-50

146

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 476 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among law firm tax services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “law firm tax services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names law firm tax services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among law firm tax services, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 11,046 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Law firm tax services by metro in the United Kingdom

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names law firm tax services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many law firm tax services are there based in London, United Kingdom?

RevenueBase identified 476 law firm tax services headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

BDO UK, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most law firm tax services?

London leads the United Kingdom with 476 headquartered companies, followed by Manchester (49) and Birmingham (39).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 11,046 verified decision-maker contacts tracked across these 476 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.